/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-064368f-1-111_1a-drivers--media--radio--si4713-i2c.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 13:43:11,970 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 13:43:11,976 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 13:43:12,038 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 13:43:12,039 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 13:43:12,042 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 13:43:12,046 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 13:43:12,055 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 13:43:12,059 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 13:43:12,068 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 13:43:12,070 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 13:43:12,071 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 13:43:12,072 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 13:43:12,076 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 13:43:12,078 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 13:43:12,081 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 13:43:12,082 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 13:43:12,087 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 13:43:12,096 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 13:43:12,113 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 13:43:12,116 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 13:43:12,117 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 13:43:12,119 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 13:43:12,120 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 13:43:12,127 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 13:43:12,127 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 13:43:12,127 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 13:43:12,129 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 13:43:12,129 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 13:43:12,130 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 13:43:12,131 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 13:43:12,132 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 13:43:12,133 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 13:43:12,133 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 13:43:12,135 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 13:43:12,135 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 13:43:12,136 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 13:43:12,136 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 13:43:12,136 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 13:43:12,137 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 13:43:12,138 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 13:43:12,140 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 13:43:12,167 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 13:43:12,168 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 13:43:12,170 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 13:43:12,170 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 13:43:12,170 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 13:43:12,171 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 13:43:12,171 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 13:43:12,171 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 13:43:12,171 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 13:43:12,171 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 13:43:12,172 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 13:43:12,172 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 13:43:12,172 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 13:43:12,172 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 13:43:12,172 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 13:43:12,173 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 13:43:12,173 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 13:43:12,173 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 13:43:12,173 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 13:43:12,174 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 13:43:12,174 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 13:43:12,174 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 13:43:12,174 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 13:43:12,174 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 13:43:12,175 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 13:43:12,175 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 13:43:12,582 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 13:43:12,634 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 13:43:12,638 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 13:43:12,640 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 13:43:12,641 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 13:43:12,646 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-064368f-1-111_1a-drivers--media--radio--si4713-i2c.ko-entry_point.cil.out.i [2020-12-22 13:43:12,732 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/342e0bc05/de1d4593c57d4947922f8bfeb074c21f/FLAG55071b4f3 [2020-12-22 13:43:13,806 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 13:43:13,807 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-064368f-1-111_1a-drivers--media--radio--si4713-i2c.ko-entry_point.cil.out.i [2020-12-22 13:43:13,849 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/342e0bc05/de1d4593c57d4947922f8bfeb074c21f/FLAG55071b4f3 [2020-12-22 13:43:14,230 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/342e0bc05/de1d4593c57d4947922f8bfeb074c21f [2020-12-22 13:43:14,235 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 13:43:14,238 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 13:43:14,241 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 13:43:14,241 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 13:43:14,248 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 13:43:14,249 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 01:43:14" (1/1) ... [2020-12-22 13:43:14,252 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@610e9aa2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:43:14, skipping insertion in model container [2020-12-22 13:43:14,252 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 01:43:14" (1/1) ... [2020-12-22 13:43:14,261 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 13:43:14,408 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 13:43:15,225 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-064368f-1-111_1a-drivers--media--radio--si4713-i2c.ko-entry_point.cil.out.i[115668,115681] [2020-12-22 13:43:16,027 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 13:43:16,058 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 13:43:16,199 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-064368f-1-111_1a-drivers--media--radio--si4713-i2c.ko-entry_point.cil.out.i[115668,115681] [2020-12-22 13:43:16,458 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 13:43:16,939 INFO L208 MainTranslator]: Completed translation [2020-12-22 13:43:16,941 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:43:16 WrapperNode [2020-12-22 13:43:16,942 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 13:43:16,944 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 13:43:16,944 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 13:43:16,945 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 13:43:16,957 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:43:16" (1/1) ... [2020-12-22 13:43:17,066 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:43:16" (1/1) ... [2020-12-22 13:43:17,998 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 13:43:18,001 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 13:43:18,001 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 13:43:18,001 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 13:43:18,012 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:43:16" (1/1) ... [2020-12-22 13:43:18,012 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:43:16" (1/1) ... [2020-12-22 13:43:18,266 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:43:16" (1/1) ... [2020-12-22 13:43:18,267 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:43:16" (1/1) ... [2020-12-22 13:43:18,924 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:43:16" (1/1) ... [2020-12-22 13:43:19,056 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:43:16" (1/1) ... [2020-12-22 13:43:19,164 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:43:16" (1/1) ... [2020-12-22 13:43:19,329 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 13:43:19,332 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 13:43:19,332 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 13:43:19,332 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 13:43:19,333 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:43:16" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 13:43:19,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-12-22 13:43:19,457 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-12-22 13:43:19,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-12-22 13:43:19,457 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 13:43:19,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 13:43:19,458 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-22 13:43:19,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-22 13:43:19,458 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 13:43:19,458 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-22 13:43:19,459 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 13:43:19,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-22 13:43:19,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 13:43:19,461 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-12-22 13:43:19,461 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2020-12-22 13:43:19,461 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 13:43:19,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 13:43:56,266 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 13:43:56,267 INFO L299 CfgBuilder]: Removed 3249 assume(true) statements. [2020-12-22 13:43:56,273 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 01:43:56 BoogieIcfgContainer [2020-12-22 13:43:56,274 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 13:43:56,275 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 13:43:56,276 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 13:43:56,280 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 13:43:56,280 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 01:43:14" (1/3) ... [2020-12-22 13:43:56,281 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a7683e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 01:43:56, skipping insertion in model container [2020-12-22 13:43:56,281 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:43:16" (2/3) ... [2020-12-22 13:43:56,281 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a7683e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 01:43:56, skipping insertion in model container [2020-12-22 13:43:56,282 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 01:43:56" (3/3) ... [2020-12-22 13:43:56,283 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-stable-064368f-1-111_1a-drivers--media--radio--si4713-i2c.ko-entry_point.cil.out.i [2020-12-22 13:43:56,291 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 13:43:56,299 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2020-12-22 13:43:56,321 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2020-12-22 13:43:56,369 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 13:43:56,369 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 13:43:56,369 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 13:43:56,369 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 13:43:56,370 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 13:43:56,370 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 13:43:56,370 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 13:43:56,370 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 13:43:56,450 INFO L276 IsEmpty]: Start isEmpty. Operand 4749 states. [2020-12-22 13:43:56,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-12-22 13:43:56,470 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:43:56,471 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 13:43:56,473 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:43:56,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:43:56,485 INFO L82 PathProgramCache]: Analyzing trace with hash -2037521194, now seen corresponding path program 1 times [2020-12-22 13:43:56,498 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:43:56,499 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139599401] [2020-12-22 13:43:56,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:43:57,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:43:57,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 13:43:57,220 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139599401] [2020-12-22 13:43:57,224 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:43:57,225 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 13:43:57,226 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462769945] [2020-12-22 13:43:57,231 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 13:43:57,231 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:43:57,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 13:43:57,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:43:57,251 INFO L87 Difference]: Start difference. First operand 4749 states. Second operand 3 states. [2020-12-22 13:43:57,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:43:57,743 INFO L93 Difference]: Finished difference Result 10237 states and 15425 transitions. [2020-12-22 13:43:57,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 13:43:57,746 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2020-12-22 13:43:57,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:43:57,810 INFO L225 Difference]: With dead ends: 10237 [2020-12-22 13:43:57,810 INFO L226 Difference]: Without dead ends: 5450 [2020-12-22 13:43:57,831 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:43:57,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5450 states. [2020-12-22 13:43:58,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5450 to 5428. [2020-12-22 13:43:58,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5428 states. [2020-12-22 13:43:58,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5428 states to 5428 states and 8130 transitions. [2020-12-22 13:43:58,169 INFO L78 Accepts]: Start accepts. Automaton has 5428 states and 8130 transitions. Word has length 33 [2020-12-22 13:43:58,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:43:58,170 INFO L481 AbstractCegarLoop]: Abstraction has 5428 states and 8130 transitions. [2020-12-22 13:43:58,170 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 13:43:58,170 INFO L276 IsEmpty]: Start isEmpty. Operand 5428 states and 8130 transitions. [2020-12-22 13:43:58,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-12-22 13:43:58,177 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:43:58,177 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 13:43:58,177 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 13:43:58,178 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:43:58,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:43:58,181 INFO L82 PathProgramCache]: Analyzing trace with hash -532029243, now seen corresponding path program 1 times [2020-12-22 13:43:58,181 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:43:58,182 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524884466] [2020-12-22 13:43:58,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:43:58,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:43:58,645 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-22 13:43:58,646 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524884466] [2020-12-22 13:43:58,646 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:43:58,646 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 13:43:58,646 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016897902] [2020-12-22 13:43:58,648 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 13:43:58,648 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:43:58,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 13:43:58,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 13:43:58,650 INFO L87 Difference]: Start difference. First operand 5428 states and 8130 transitions. Second operand 5 states. [2020-12-22 13:44:27,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:44:27,129 INFO L93 Difference]: Finished difference Result 12237 states and 18209 transitions. [2020-12-22 13:44:27,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 13:44:27,130 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 62 [2020-12-22 13:44:27,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:44:27,166 INFO L225 Difference]: With dead ends: 12237 [2020-12-22 13:44:27,167 INFO L226 Difference]: Without dead ends: 6827 [2020-12-22 13:44:27,177 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-22 13:44:27,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6827 states. [2020-12-22 13:44:27,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6827 to 5432. [2020-12-22 13:44:27,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5432 states. [2020-12-22 13:44:27,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5432 states to 5432 states and 8135 transitions. [2020-12-22 13:44:27,335 INFO L78 Accepts]: Start accepts. Automaton has 5432 states and 8135 transitions. Word has length 62 [2020-12-22 13:44:27,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:44:27,337 INFO L481 AbstractCegarLoop]: Abstraction has 5432 states and 8135 transitions. [2020-12-22 13:44:27,337 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 13:44:27,337 INFO L276 IsEmpty]: Start isEmpty. Operand 5432 states and 8135 transitions. [2020-12-22 13:44:27,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-12-22 13:44:27,345 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:44:27,345 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 13:44:27,346 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 13:44:27,346 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:44:27,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:44:27,347 INFO L82 PathProgramCache]: Analyzing trace with hash 1136380178, now seen corresponding path program 1 times [2020-12-22 13:44:27,348 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:44:27,349 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639596354] [2020-12-22 13:44:27,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:44:27,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:44:27,744 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-22 13:44:27,744 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639596354] [2020-12-22 13:44:27,745 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:44:27,745 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-22 13:44:27,745 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422198225] [2020-12-22 13:44:27,745 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 13:44:27,746 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:44:27,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 13:44:27,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-22 13:44:27,752 INFO L87 Difference]: Start difference. First operand 5432 states and 8135 transitions. Second operand 6 states. [2020-12-22 13:45:20,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:45:20,371 INFO L93 Difference]: Finished difference Result 18664 states and 27771 transitions. [2020-12-22 13:45:20,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-22 13:45:20,374 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 63 [2020-12-22 13:45:20,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:45:20,441 INFO L225 Difference]: With dead ends: 18664 [2020-12-22 13:45:20,441 INFO L226 Difference]: Without dead ends: 13250 [2020-12-22 13:45:20,455 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-12-22 13:45:20,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13250 states. [2020-12-22 13:45:20,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13250 to 5433. [2020-12-22 13:45:20,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5433 states. [2020-12-22 13:45:20,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5433 states to 5433 states and 8136 transitions. [2020-12-22 13:45:20,671 INFO L78 Accepts]: Start accepts. Automaton has 5433 states and 8136 transitions. Word has length 63 [2020-12-22 13:45:20,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:45:20,671 INFO L481 AbstractCegarLoop]: Abstraction has 5433 states and 8136 transitions. [2020-12-22 13:45:20,672 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 13:45:20,672 INFO L276 IsEmpty]: Start isEmpty. Operand 5433 states and 8136 transitions. [2020-12-22 13:45:20,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-12-22 13:45:20,676 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:45:20,676 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 13:45:20,677 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 13:45:20,677 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:45:20,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:45:20,677 INFO L82 PathProgramCache]: Analyzing trace with hash -714352571, now seen corresponding path program 1 times [2020-12-22 13:45:20,678 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:45:20,678 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559412770] [2020-12-22 13:45:20,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:45:20,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:45:20,964 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-22 13:45:20,964 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559412770] [2020-12-22 13:45:20,965 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:45:20,965 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-22 13:45:20,965 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870701555] [2020-12-22 13:45:20,966 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 13:45:20,966 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:45:20,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 13:45:20,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-22 13:45:20,967 INFO L87 Difference]: Start difference. First operand 5433 states and 8136 transitions. Second operand 6 states. [2020-12-22 13:46:20,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:46:20,839 INFO L93 Difference]: Finished difference Result 13394 states and 19848 transitions. [2020-12-22 13:46:20,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-22 13:46:20,840 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 63 [2020-12-22 13:46:20,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:46:20,875 INFO L225 Difference]: With dead ends: 13394 [2020-12-22 13:46:20,875 INFO L226 Difference]: Without dead ends: 7979 [2020-12-22 13:46:20,890 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-12-22 13:46:20,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7979 states. [2020-12-22 13:46:21,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7979 to 5437. [2020-12-22 13:46:21,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5437 states. [2020-12-22 13:46:21,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5437 states to 5437 states and 8141 transitions. [2020-12-22 13:46:21,099 INFO L78 Accepts]: Start accepts. Automaton has 5437 states and 8141 transitions. Word has length 63 [2020-12-22 13:46:21,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:46:21,100 INFO L481 AbstractCegarLoop]: Abstraction has 5437 states and 8141 transitions. [2020-12-22 13:46:21,100 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 13:46:21,101 INFO L276 IsEmpty]: Start isEmpty. Operand 5437 states and 8141 transitions. [2020-12-22 13:46:21,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-12-22 13:46:21,107 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:46:21,107 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 13:46:21,107 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 13:46:21,108 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:46:21,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:46:21,108 INFO L82 PathProgramCache]: Analyzing trace with hash -1635166794, now seen corresponding path program 1 times [2020-12-22 13:46:21,109 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:46:21,109 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258595241] [2020-12-22 13:46:21,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:46:21,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:46:21,355 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-22 13:46:21,355 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258595241] [2020-12-22 13:46:21,356 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:46:21,356 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 13:46:21,356 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194947119] [2020-12-22 13:46:21,357 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 13:46:21,357 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:46:21,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 13:46:21,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:46:21,358 INFO L87 Difference]: Start difference. First operand 5437 states and 8141 transitions. Second operand 3 states. [2020-12-22 13:46:21,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:46:21,641 INFO L93 Difference]: Finished difference Result 10596 states and 15909 transitions. [2020-12-22 13:46:21,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 13:46:21,643 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 64 [2020-12-22 13:46:21,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:46:21,671 INFO L225 Difference]: With dead ends: 10596 [2020-12-22 13:46:21,671 INFO L226 Difference]: Without dead ends: 10584 [2020-12-22 13:46:21,676 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:46:21,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10584 states. [2020-12-22 13:46:21,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10584 to 5425. [2020-12-22 13:46:21,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5425 states. [2020-12-22 13:46:21,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5425 states to 5425 states and 8129 transitions. [2020-12-22 13:46:21,908 INFO L78 Accepts]: Start accepts. Automaton has 5425 states and 8129 transitions. Word has length 64 [2020-12-22 13:46:21,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:46:21,909 INFO L481 AbstractCegarLoop]: Abstraction has 5425 states and 8129 transitions. [2020-12-22 13:46:21,909 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 13:46:21,909 INFO L276 IsEmpty]: Start isEmpty. Operand 5425 states and 8129 transitions. [2020-12-22 13:46:21,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-12-22 13:46:21,914 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:46:21,914 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 13:46:21,914 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 13:46:21,914 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:46:21,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:46:21,915 INFO L82 PathProgramCache]: Analyzing trace with hash -220675694, now seen corresponding path program 1 times [2020-12-22 13:46:21,915 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:46:21,916 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094493018] [2020-12-22 13:46:21,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:46:22,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:46:22,354 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-22 13:46:22,355 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094493018] [2020-12-22 13:46:22,355 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:46:22,355 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-22 13:46:22,355 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453610124] [2020-12-22 13:46:22,356 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-22 13:46:22,356 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:46:22,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-22 13:46:22,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-12-22 13:46:22,357 INFO L87 Difference]: Start difference. First operand 5425 states and 8129 transitions. Second operand 7 states.